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kobusy [5.1K]
3 years ago
13

Which of the following is independent variable?

Mathematics
1 answer:
satela [25.4K]3 years ago
6 0

I think the answer is D. hours because its variation does not depend on another variable

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7th grade math!<br><br> Divide 20xy^4z^12 by 4x^3yz^24<br><br> Answer options in picture above.
luda_lava [24]

Answer:third one

Step-by-step explanation:

6 0
3 years ago
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Evaluate the expression for the given value of x<br><br> 7x + 8 for x = 2
Anit [1.1K]

Answer:

22

Step-by-step explanation:

Since x = 2, we can tell that x is equal to 2.

So this is basically asking 7 times 2 plus 8

7(2) + 8 = ?

14 + 8 = 22

Hope this helps!

4 0
3 years ago
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What is 3/8 as a decimal and percent?
vova2212 [387]
3/8 as a decimal equals=
3÷8=0.375


3/8 as percent equals= 
0.375= 37.5%
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4 0
3 years ago
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The school librarian, Mr. Marker, knows the library has 1,400 books but wants to reorganize how the books are displayed on the s
kipiarov [429]

Answer:

200 resource books

800 fiction books

400 nonfiction books

Step-by-step explanation:

Let's define x as the amount of resource books that are in the library. As he has four times as many fiction books as resource books, that means he has 4*x fiction books.

We also know he has half as many nonfiction books as fiction books, that is 1/2*4*x = 2*x nonfiction books.

We just need to find out the value of x.

We know there are 1,400 books in total and there are just 3 types of books. Therefore, if we sum all of them, we get the 1,400.

Written in math language, that is

x + 4x + 2x = 1,400

7x = 1,400

We divide by 7 on both sides and we get

7/7x = 1,400/7

x = 200

Now we replace the x with 200 to know how many books he has of each type:

Resource books = x = 200

Fiction books = 4*x = 4*200 = 800

Nonfiction books = 2*x = 2*200 = 400

Therefore, there are 200 resource books, 800 fiction books and 400 nonfiction books in the library.

The tape diagram is attached as an image.

8 0
2 years ago
Help me pleaseeeeeee
iogann1982 [59]
You start by finding two points on the line. In this case, (-4,1) and (-2,2) will do.

To get from (-4,1) to (-2,2), you need to go “up 1, right 2” which gives you a slope of m = 1/2

Next you need the b-value, which comes from the y-intercept of (0,3). The b-value is 3.

Putting the slope and b-value into y=mx+b, you have y = 1/2 x + 3.
4 0
3 years ago
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